Organic EL element and method of manufacturing the same
AssigneeNEC Corporation
InventorsIkuko Ishii, Yuji Kondo
Life of this patent
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Abstract
An organic EL element includes a light-transmitting glass substrate, an organic electroluminescence (EL) layer, a frame, a sealing cap, and an adhesive. The organic EL layer is formed on an element formation region of the substrate. The frame is formed on the substrate to surround the element formation region. The frame has a flat upper surface that has absorbed a three-dimensional shape on a surface of the substrate. The sealing cap is to be fixed to an upper surface of the frame. The adhesive adheres the frame and the sealing cap to each other. The adhesive is set at a temperature lower than a heat resistant temperature of the organic EL layer. A method of manufacturing the organic EL element is also disclosed.
Claims20
An organic EL element comprising:
- a light-transmitting transparent substrate;
- an organic electroluminescence (EL) layer formed on an element formation region of said substrate;
- a frame formed on said substrate to surround said element formation region, said frame having a flat upper surface that has absorbed a three-dimensional shape on a surface of said substrate;
- a sealing cap to be fixed to an upper surface of said frame;
- and
- an adhesive layer for adhering said frame and said sealing cap to each other, said adhesive layer being set at a temperature lower than a heat resistant temperature of said organic EL layer.
A method of manufacturing an organic EL element, comprising the steps of:
- forming, on a light-transmitting transparent substrate, a frame with a flat upper surface that has absorbed a three-dimensional shape on a surface of the substrate, to surround an element formation region;
- forming an organic electroluminescence (EL) layer on the element formation region of the substrate;
- and
- adhering a sealing cap on an upper surface of the frame with an adhesive layer made of an organic material which is set at a temperature lower than a heat resistant temperature of the organic EL layer, thereby hermetically sealing the organic EL layer in a container formed of the substrate, the frame, and the sealing cap.
Dependencies are inferred from the claim text.